Novel molten salt reactor energy transmission system with supercritical carbon dioxide

Abstract

The invention discloses a novel molten salt reactor energy transmission system with supercritical carbon dioxide. The system comprises a loop I providing a heat source, an isolation loop and a loop III converting heat energy into electric energy. A nuclear reactor using fused salt as a coolant is arranged at the loop I; and supercritical carbon dioxide is used as a working medium in the loop III. A turbine, a generator, a regenerator set, a cooler, and a main gas compressor are arranged at the loop III. A secondary side outlet of a second heat exchanger is connected with a secondary side inlet of the second heat exchanger by high-temperature sides of the turbine and the regenerator set and low-temperature sides of the cooler, the main gas compressor, and the regenerator set; and the output terminal of the turbine is connected with the input terminal of the generator. The regenerator set contains at least two regenerators; high-temperature side channels of all regenerators in the regenerator set are communicated and low-temperature side channels of all regenerators in the regenerator set are communicated. According to the invention, with the system, optimization of the generating efficiency can be realized.

Description

technical field [0001] The invention relates to the field of generating electricity using supercritical carbon dioxide, in particular to a novel molten salt reactor energy conversion system using supercritical carbon dioxide. Background technique [0002] Nuclear energy is a clean energy that can be developed on a large scale and plays an important role in supporting the country's energy supply and environmental protection. With the gradual improvement of mankind's requirements for energy utilization, nuclear energy technology has also undergone a gradual upgrading process. Molten salt reactors occupy a place among the six most promising fourth-generation nuclear energy systems recognized by the international community. [0003] The current molten salt reactor system generally uses three loops. Another isolation circuit is provided between the fuel coolant system and the power generation system. The primary circuit is a liquid molten salt coolant, and the fuel and coolant...

AI Technical Summary

Problems solved by technology

The energy conversion system using water / steam as the working medium generally adopts the Rankine cycle. The efficiency of the Rankine cycle is not ideal at high temperature, and the system is complicated, with many equipments, large volume, and high investment cost.

The energy conversion system using helium as the working fluid generally adopts the Brayton cycle. Due to the low density of helium, the compression power consumption is very large, resulting in relatively low efficiency of the helium Brayton cycle.

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